code: def after_run(self, runner):
      if self.add_last_ckpt:
          ckpt_path = osp.join(runner.work_dir, "latest.pth")
          if osp.islink(ckpt_path):
              ckpt_path = osp.join(
                  runner.work_dir, os.readlink(ckpt_path)
              )
  
          if osp.isfile(ckpt_path):
              # runner.epoch += 1 has been done before `after_run`.
              iteration = runner.epoch if self.by_epoch else runner.iter
              return self.writer.add_snapshot_file(
                  tag=self.run_name,
                  snapshot_file_path=ckpt_path,
                  iteration=iteration,
              )
  
      # flush the buffer and send a task ending signal to Pavi
      self.writer.close()
  
file_path: lavis/lavis/common/annotator/uniformer/mmcv/runner/hooks/logger/pavi.py
imports: import json
  import os
  import os.path
  import torch
  import yaml
  import annotator.uniformer.mmcv
  from ....parallel.utils import is_module_wrapper
  from ...dist_utils import master_only
  from ..hook import HOOKS
  from .base import LoggerHook
label_desc: Use image node_id 5 for calling the PaviLoggerHook obj's underlying member method code with example usage: obj.after_run(runner) and returns: self